Contact 7 form is not working

I have installed Katori theme, it is simply great theme. I am trying to use Contact 7 form plugin, but it is simply displaying the short code, instead of actual form.

Also, I tried Jetpack Contact Form as well, same issue persists. Could you please help me?

You’re using the Ginger extension for Chrome, correct?
It’s breaking the shortcode for the contact form and it’s adding some spans. Check your page with the contact form with the HTML editor and you’ll see. Also, disable that extension.